Accumulated Other Comprehensive Income (Loss) - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Feb. 29, 2020	Nov. 30, 2019	Aug. 31, 2019	Feb. 28, 2019	Nov. 30, 2018	Aug. 31, 2018	Feb. 29, 2020	Feb. 28, 2019	Jun. 01, 2019	Jun. 01, 2018
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance	$ 3,104,970	$ 3,050,706	$ 3,002,721	$ 3,027,244	$ 3,345,968	$ 3,016,526	$ 3,002,721	$ 3,016,526
Other comprehensive income (loss) before reclassifications	(57,621)	24,174	(23,179)	(3,158)	(5,702)	(6,187)
Amounts reclassified from accumulated other comprehensive income (loss)	(358)	(358)	(295)	(295)	(294)	(295)
Other comprehensive loss	(57,979)	23,816	(23,474)	(3,453)	(5,996)	(6,482)	(57,637)	(15,931)
Cumulative effect of change in accounting principle									$ (833)	$ 189,192
Balance	3,324,309	3,104,970	3,050,706	3,179,492	3,027,244	3,345,968	3,324,309	3,179,492
Foreign Currency
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance	(6,885)	(8,298)	(15,022)	(7,092)	3,531	6,550	(15,022)	6,550
Other comprehensive income (loss) before reclassifications	(4,039)	1,413	6,724	5,025	(10,623)	(3,019)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0	0	0	0
Other comprehensive loss	(4,039)	1,413	6,724	5,025	(10,623)	(3,019)
Cumulative effect of change in accounting principle									0
Balance	(10,924)	(6,885)	(8,298)	(2,067)	(7,092)	3,531	(10,924)	(2,067)
Unrealized Loss on Interest Rate Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance	(24,126)	(46,529)	(18,389)	11,613	6,986	10,449	(18,389)	10,449
Other comprehensive income (loss) before reclassifications	(53,582)	22,761	(29,903)	(8,183)	4,921	(3,168)
Amounts reclassified from accumulated other comprehensive income (loss)	(358)	(358)	(295)	(295)	(294)	(295)
Other comprehensive loss	(53,940)	22,403	(30,198)	(8,478)	4,627	(3,463)
Cumulative effect of change in accounting principle									2,058
Balance	(78,066)	(24,126)	(46,529)	3,135	11,613	6,986	(78,066)	3,135
Other
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance	(5,824)	(5,824)	(5,741)	(656)	(656)	(656)	(5,741)	(656)
Other comprehensive income (loss) before reclassifications	0	0	0	0	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0	0	0	0
Other comprehensive loss	0	0	0	0	0	0
Cumulative effect of change in accounting principle									(83)
Balance	(5,824)	(5,824)	(5,824)	(656)	(656)	(656)	(5,824)	(656)
Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance	(36,835)	(60,651)	(39,152)	3,865	9,861	16,343	(39,152)	16,343
Other comprehensive loss	(57,979)	23,816	(23,474)	(3,453)	(5,996)	(6,482)
Cumulative effect of change in accounting principle									$ 1,975
Balance	$ (94,814)	$ (36,835)	$ (60,651)	$ 412	$ 3,865	$ 9,861	$ (94,814)	$ 412

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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